After socialite Lynn Llewellyn receives an anonymous threat, he is poisoned at his uncle's casino, and although he recovers, his wife is murdered by the same killer.
as Philo Vance
as Priscilla Kinkaid Llewellyn
as Lynn Llewellyn
as Doris Reed
as Richard Kinkaid
as Police Sergeant Ernest Heath
as Currie
as Amelia Llewellyn
as Becky
as District Attorney John Markham (as Purnell B. Pratt)
as Dr. Kane
as Virginia Llewellyn
as Smith (as Leo Carroll)
as Dr. Doremus
as Husband of Fat Lady at Auction (uncredited)
as Casino Patron (uncredited)
as Nurse to Lynn (uncredited)
as Waiter (unconfirmed) (uncredited)
as Dr. Elton (uncredited)
as Auctioneer (uncredited)
as Auction Floorman (uncredited)
as Mrs. Marting (uncredited)
as Watchman (uncredited)
as Police Detective (unconfirmed) (uncredited)
as Fat Lady at Auction (uncredited)
as Reporter (uncredited)
as Reporter (uncredited)
as Taki - Casino Pageboy (uncredited)
as Roulette Croupier (uncredited)
as Casino Patron (uncredited)
as Japanese Casino Waiter (uncredited)
as Photographer (uncredited)
as Assistant Coroner (uncredited)
as Police Detective (uncredited)
